|Pos|No|Driver|Team|Laps|Time/Retired|Grid|Points|
|---|---|---|---|---|---|---|---|
|1|5|Will Power|Team Australia|73|1:45:58.568|7|31|
|2|21|Neel Jani|PKV Racing|73|+2.972|9|28|
|3|9|Justin Wilson|RSPORTS|73|+3.480|2|25|
|4|15|Simon Pagenaud|Team Australia|73|+5.643|4|23|
|5|19|Bruno Junqueira|Dale Coyne Racing|73|+20.738|5|21|
|6|14|Robert Doornbos|Minardi Team USA|72|+ 1 Lap|12|19|
|7|28|Ryan Dalziel|Pacific Coast Motorsports|72|+ 1 Lap|11|17|
|8|8|Alex Tagliani|RSPORTS|71|+ 2 Laps|6|15|
|9|1|Sébastien Bourdais|N/H/L Racing|67|Contact|1|16|
|10|7|Oriol Servia|Forsythe Racing|56|Contact|3|11|
|11|2|Graham Rahal|N/H/L Racing|52|Contact|15|10|
|12|4|Dan Clarke|Minardi Team USA|43|Contact|13|9|
|13|34|Jan Heylen|Conquest Racing|1|Contact|8|8|
|14|3|Paul Tracy|Forsythe Racing|0|Contact|10|7|
|15|22|Tristan Gommendy|PKV Racing|0|Contact|14|6|
|16|11|Katherine Legge|Dale Coyne Racing|0|Contact|16|5|
|17|29|Alex Figge|Pacific Coast Motorsports|0|Contact|17|4|

Question: how many drivers completed the 2007 steelback grand prix?
Answer: 5